The City of Tulsa's Stormwater program monitors many of Tulsa's streams for fish, which tells us information about the health of the stream. One common fish found is the Central Stoneroller. Comfortable in almost any section of the stream, the Central Stoneroller is a schooling minnow that feeds primarily on algae and detritus. Its size ranges from a few inches to almost 12 inches depending on the available habitat.
Using the cartilaginous ridge on its lower jaw, it often rolls its body to remove mouthfuls of algae from the substrate, hence the name stoneroller. This action is noticeable when in clear water as large schools seem to sparkle from the sunlight reflecting off of their silvery sides as they feed. Also true to their name sake, breeding males will roll stones with their snouts to create large depression in the gravel for nesting.
Breeding males will also develop breeding tubercles on their snouts and aggressively defend their nests from other males. In urban streams, the Central Stoneroller is a welcome inhabitant as they indicate only mild water quality issues and provide forage for desired, less tolerant species.